/// <summary>
        /// 刪除虛擬路徑
        /// </summary>
        /// <param name="virtualdirname"></param>
        public static void DeleteVirtualDir(string virtualdirname)
        {
            DirectoryEntry _rootEntry;
            _rootEntry = new DirectoryEntry("IIS://localhost/W3SVC/" + SiteId + "/root");
            object[] paras = new object[2];
            paras[0] = "IIsVirtualDir";
            paras[1] = virtualdirname;
            _rootEntry.Invoke("Delete", paras);
            _rootEntry.CommitChanges();
        }

        /// <summary>
        /// 創(chuàng)建虛擬目錄
        /// </summary>
        /// <param name="siteId">iis站點ID</param>
        /// <param name="dirName">虛擬文件夾名稱</param>
        /// <param name="path">物理路徑</param>
        /// <param name="userName">用戶名稱</param>
        /// <param name="userPass">用戶密碼</param>
        /// <param name="appPoolId">應用池Id</param>
        /// <returns></returns>
        public static string CreateVirtualDir(string siteId, string dirName, string path, string userName, string userPass, string appPoolId)
        {
            string constIISWebSiteRoot = "IIS://localhost/W3SVC/" + siteId + "/ROOT";
            string virtualDirName = dirName;//虛擬目錄名稱
            string physicalPath = path;
            try
            {
                DirectoryEntry root = new DirectoryEntry(constIISWebSiteRoot);
                foreach (System.DirectoryServices.DirectoryEntry v in root.Children)
                {
                    if (v.Name == dirName)
                    {

                        DeleteVirtualDir(dirName);
                    }
                }
                DirectoryEntry tbEntry = root.Children.Add(virtualDirName, "IIsWebVirtualDir");
                tbEntry.Invoke("AppCreate", true);
                //設置虛擬目錄指向的物理路徑
                tbEntry.Properties["Path"][0] = physicalPath;
                //設置讀取權限
                tbEntry.Properties["AccessRead"][0] = true;
                //允許寫入  
                tbEntry.Properties["AccessWrite"][0] = false;
                //腳本資源訪問
                tbEntry.Properties["AccessExecute"][0] = false;
                //允許匿名訪問   
                tbEntry.Properties["AuthAnonymous"][0] = true;
                // 設置目錄的安全性，0表示不允許匿名訪問，1為允許，3為基本身份驗證，7為windows繼承身份驗證
                tbEntry.Properties["AuthFlags"][0] = 1;
                //允許基本驗證 
                tbEntry.Properties["AuthBasic"][0] = false;
                //允許WIndows集成驗證   
                tbEntry.Properties["AuthNTLM"][0] = false;
                //索引此資源   
                tbEntry.Properties["ContentIndexed"][0] = false;
                //目錄瀏覽   
                tbEntry.Properties["EnableDirBrowsing"][0] = false;
                //腳本可執(zhí)行   
                tbEntry.Properties["AccessScript"][0] = true;
                //允許父路徑   
                tbEntry.Properties["AspEnableParentPaths"][0] = true;
                //應用程序名稱
                tbEntry.Properties["AppFriendlyName"][0] = virtualDirName;
                //應用程序保護   
                tbEntry.Properties["AppIsolated"][0] = 2;
                //設置默認文檔 
                //tbEntry.Properties["DefaultDoc"][0] = "index.asp,index.html,index.htm";
                tbEntry.Properties["EnableDefaultDoc"][0] = true;
                //日志訪問   
                tbEntry.Properties["DontLog"][0] = true;
                ////用戶名
                //tbEntry.Properties["AnonymousUserName"][0] = "Administrator";
                ////用戶密碼
                //tbEntry.Properties["AnonymousUserPass"][0] = "";
                ////程序池
                //tbEntry.Properties["AppPoolId"][0] = appPoolId;
                tbEntry.CommitChanges();
                root.CommitChanges();
                return "1";
            }
            catch (Exception ex)
            {
                //return "0";
                return ex.Message + "<br>" + ex.Source;
            }
        }